What’s happening to me?

I took a pregnancy test 4 days ago because I missed my period, which there was a faint line but it was obvious that it was there. I called and made an appt and it’s not till next Monday. Me & my husband are super excited as we’ve been ttc for about 8 ish months... we are also nervous as this will be our first baby. This morning I noticed there was a little bit of blood in my underwear along with some light cramping. I called my obgyn and told the ladies at the front desk what was going on and she said she will see if they can fit me in today for an appointment and that she would call me back within 2 hours as they were pretty busy. I haven’t heard anything back yet and there office closes in 2 hours. Since that phone call I have seen blood, not much but the cramping is getting worse... my husband is at work and I’m to scared to call him and tell him. They almost feel like period cramps but are more throbbing and are pretty consistent. I don’t want to move from the couch. What is happening to me? Is this normal? If I had to take a guess I believe I am about 5 weeks based on my last period...