(I'm doing my absolute best here to critique the writing without bringing my view in. Also, please excuse me for any errors/mistakes of any kind in my critique, in my defence I'm on my phone on fairly crappy hotel wifi.)
The weakest part of your speech is that it does not rely very much at all on logic and facts, rather being a purer emotional appeal. While an emotional appeal can strengthen your argument, the first thing that it needs is a solid foundation.
Your entire premise is equating abortion with murder. However, the only evidence brought forward is that
Within just 12 weeks, your baby’s heart start to beat, its brain coordinates movement, unique and permanent fingerprints develop, it can smile, form a fist, suck its thumb and it is able to feel pain.
If you don't mind me saying so, that is rather flimsy and thin to base your entire argumen on. The thought immediately conjured in my mind is "animals' hearts beat too, and it can also do most of these things... where's the difference between an abortion procedure and how the chicken got to my plate for today's dinner?"
As others have stated, you'll also need to rebut the bodily sovereignty argument. To force a raped woman to carry her rapist's child to conception (taking the most extreme case), when it was not her doing at all, the trauma that will inevitably result from having brought to the world a being via the act of violating you in the worst possible way, and the inevitable difficulties in any pregnancy... Weighing that against a clenched fist and a heartbeat, I don't see how those can win.
Seeing that you have not convinced the audience (i.e. me, an incredibly harsh and sceptic critic as I'm trying to push you to the next level with your argument), that the fetus has any more ethical value than a chicken on its own merit, I don't see how the argument that it has the "right to live" any more than it. As for its potential to develop into a baby - so does sperm. The same argument, I think, can be then applied to birth control.
The figures you've cited regarding women who had an abortion being more likely to suffer from diseases, depression etc. is a relatively stronger one. There are two potential issues with it that I could see, but I'm being quite nitpicky here. Firstly, you've presented a vast collection of statistics on the issue, without citing any source or making any further attempt at making them sound credible. I could contend that there could be other reasons for this correlation other than the abortion itself (the socioeconomic status of women who have undesired pregnancies, the trauma caused by the pregnancy itself, et cetera), and I think that may indeed be the case. Secondly, it does not consider the potential trauma you might be causing a woman by prohibiting her from terminating an abortion, which I've already mentioned. I presume you've taken these figures from pro-life sources - I assure you that if you did your research on pro-choice websites (say Planned Parenthood), you'd find statistics showing quite the opposite. (It's funny how we manage to spin the same truth in so many different ways, to suit our beliefs.) Oh, and thirdly, there's again the bodily autonomy argument. Eating Macca's or smoking cigarettes is bad for you, and yet they're not outlawed. We generally let people make their own minds up on those decisions.
I suppose it's a good thing that my personal viewpoint on this matter is opposite to yours, as it allows me to make suggestions and find potential issues much more easily than had I agreed with you. You've made a very strong start on this, so please don't think your oral is awful or anything - it's really far from it! I'm only trying to help you achieve even better.
