Should dr call?

Christina

So I recently found out I am pregnant and a couple days after that I started bleeding. Only bleed when using the bathrrom, nothing ever ended up on the pad. I was worried of course so I went to the ER. They did both ultrsounds and didnt find anything but said that I may just be too early in my pregnancy to see the sack or pole. Also checked my hcg levels and said they were very low. They were 15.2 on saturday. Tuesday I went to my dr and got more blood work done and was they scheduled an appointment for May 2nd. I havent heard anything at all and now its basically the weekend. I am going to call monday to see what is going on because there is no way I cant wait until May 2nd. I am hoping that no news is good news and that I am still pregnant. This is my 2nd pregnancy. I didnt ever bleed with my first. I stopped bleeding tuesday the day I got my blood work. I havent bleed since. Help??