Cesar if you are not sure then I seriously think you should make an appt for an X-ray by June 19h.That is 1 week before she is due.
Have you noticed her any bigger in the ribcage?Nipples swollen a bit?
I called a vet for a Xray price and it wasn't as expensive as I thought $5
I dont think you want to be surprised with a whelping and have no supplies at all with you. Ive had a few nightmares that I wake up and find Lola's already given birth and the puppies are freezing cold on our tile floor

I havent gone out and bought any hemostats ,puppyformula and other stuff yet. I got the syringe bulb to suck the fluids out of the pups nose and mouth. I already had the heating pad,lots of new towels and washcloths and I did order a highly recommended book by Myra Servant
Canine Reproduction and Whelping.It should arrive this week and I am goign to read it cover to cover as soon as I get it! lol