I want to be pregnant and start a family with my boyfriend

I'm a 21 year old female who wants to be pregnant and start a family with my boyfriend.

My last period was September 5th and I started ovulating on the 23rd of September and I've been expecting my period for October but didn't get it yet. But I was suppose to come back on my period on the 7th of October and missed it and now I'm 7 days late.

Before I noticed that, I've been getting sharp pains an my stomach lately like going straight across my stomach horizonally and some pain in my lower stomach on my left side and I can't take it anymore.

Also, my head has been hurting lately as well and it doesn't matter if I eat or not I be feeling like I want to puke all my insides and my nipples has been very tender lately too and I just want to know what does that song like to other people and this goes for everybody and especially for the females because I want to know what's going on right now.

If anybody can help me understand what's going on I really would appreciate it if someone can give me some advice on my situation.