What is going on with my body?

So here is what's going on. Me and my husband have been TTC for around a month now, I have been having super sore boobs for the past 2 weeks and cramping some. Well I was thinking am I possibly pregnant? Fast forward to yesterday and I started my period-and it has been the WORST period I have ever had. Super heavy and cramps that make me want to cry. Also my period was not scheduled to come until next Thursday-I'm always 5 days late and now I'm having it a week early, so basically I've had 2 periods in 1 month. Anyone know what might be going on??? Any advice would be very appreciated!❤️